Date of Award

5-2022

Degree Type

Thesis

Degree Name

Master of Science - Forestry

Department

Forestry

First Advisor

I-Kuai Hung

Second Advisor

Brian Oswald

Third Advisor

Christopher M. Schalk

Fourth Advisor

Daniel Saenz

Fifth Advisor

Clifford E. Shackelford

Abstract

The Bachman’s Sparrow (Peucaea aestivalis) is a declining songbird that occurs throughout the southeastern United States. Bachman’s Sparrow is a Species of Greatest Conservation Need in Texas, but information crucial to management efforts, such as factors affecting their detectability and occupancy, is lacking. I investigated the predictors of Bachman’s Sparrow occupancy and phenology in Texas using detections from autonomous recording units coupled with site characteristics and weather data. My results indicate that Bachman’s Sparrow occupancy is associated with increasing herbaceous ground cover and decreasing basal area, distance to the nearest source population, and basal area when canopy height is high. Singing phenology is affected by photoperiod and precipitation, with singing occurring between January and October. These results highlight the optimal spatial and temporal conditions for this species to guide future management and monitoring efforts.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Available for download on Friday, May 05, 2023

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